Pipe-ball-annealing furnace



E. E. ALEXANDER AND J. T. PIGGOTT.

ms BALL ANNEALING FURNACE. APPLICATION FILED IAN-2B. I919. Y 6 Patented isep'b. 28, 1920.

2 SHEETS-SHEEI I.

I N VEN TORJ A TTORNE Y.

I A) I all X ilfg H I U II H w w W |IEH.HIM,. I. m I b\ \w AEF. r

E. E. ALEXANDER AND J. T. PIGGOTT.

PIPE BALL ANNEALING FURNACE.

I i 6 APPLICATION FILED JAN.28. I919- I 1,354,368. Patented Sept. 28, 1920.

2 SHEETSSHEE1 2.

WITNESS; INVENTOR.6 Q L d r -A'Zaawdr A TTORNE Y.

ping tank.

UNITED STATES PATENT OFFICE.

EDWARD E. ALEXANDER AND J OI-IN PIGGOTT, OF HIGH BRIDGE, NEW JERSEY, ASSIGNORS TO TAYLOR-W'HARTON IRON AND STEEL COMPANY, OF HIGH BRIDGE, NEW JERSEY, A CORPORATION OF NEW JERSEY.

PIPE-BALL-ANNEALING FURNACE.

To all whom it may concern:

Be it known that we, EDWARD E. ALEX- ANDER and JOHN T. Piecorr, citizens of the United States, residing at High Bridge, in the county of Hunterdon and State of New Jersey, have invented certain new and use- 7 ful Improvements in Pipe-Ball-Annealing Furnaces, of which the following is a specification.

This invention relates to metal treating operations in which the metal is heat-treated or annealed and then quenched in a dip- It has special utility in the treatment of pipe-balls and the like, and it resides in a novel form of annealing furnace having provision for delivering the pipeballs, or other articles, to the clipping tank with facility and dispatch and without loss of refractories.

The nature, characteristic features and scope of the invention will more readily be understood from the following description taken in connection with the accompanying drawings, forming a part hereof, wherein Figure 1 is a front elevational view of an annealing furnace embodying features of our invention.

Fig. 2 is a side elevational view of the furnace with the clipping tank in section.

The furnace 5, which may be otherwise as usual and equipped with appropriate heating provisions as usual, is provided with a hinged bottom 6, the hinge mounting being located at the rear, as indicated at 7.

A sunken pit or dipping tank 8 is disposed in proximity with and in front of the furnace, and its wall 9 on the furnace side is shortened to admit of the reception of the projecting portion or apron 10 of the hinged bottom, so that when the latter is rocked through its extreme arc of movement and rests on or overhangsthe wall 9, the side walls of the tank constitute guides which direct the passage of the pipe-balls or other articles into the quenching fluid of the tank. The angular position assumed by the bot- Specification of Letters Patent. Patented Sept 28, 192() Application filed January 28, 1919.

Serial No. 273,555.

tom 6, when rocked or tilted to dumping position, as indicated in dotted lines in Fig. 2, insures the quick delivery of the heattreated articles, and the refractories do not come into contact with the bath.

A bail 11 secured to the apron 10 is provided with chains or cables 12 and 13, whereofone passes over 'a sheave 14 and is connected to a fluid operated plunger 15, and whereof the other passes over sheaves l6 and 17 and carries a counterweight 18, which operates to return the bottom 6 from dumping position.

The furnace door 19 may be raised and lowered through the instrumentality of a flexible connection. or chain 20 leading to,

r for example, the fluid operated plunger 21.

Having described the nature and object of the invention, we clain 1. In an apparatus of the type recited, the combination with a heating furnace, of a dipping tank in proximity therewith, the bottom of the furnace being mounted for swinging movement to afford a direct conveyer from the furnace to the dipping tank.

2. In an apparatus of the type recited, the combination with a heating furnace having a hinged bottom, and an apron projection from the free edge of such bottom, of a dipping tank in proximity to the furnace, the furnace bottom forming a direct conveyer from the furnace to the tank with the apron overlying the tank.

3. In an apparatus of the type recited, a furnace having a hinged bottom with an apron projection, and a tank located in proximity to the furnace with the wall thereof next the furnace of reduced height to receive the edge of the bottom when said bottom is in position to provide a conveyer from the furnace to; the tank.

In testimony whereof we aiiix our signatures.

EDIVARD E. ALEXANDER. JOHN T. PIGGOTT. 

